JP2003134891A - Wind-power generator - Google Patents
Wind-power generatorInfo
- Publication number
- JP2003134891A JP2003134891A JP2001323693A JP2001323693A JP2003134891A JP 2003134891 A JP2003134891 A JP 2003134891A JP 2001323693 A JP2001323693 A JP 2001323693A JP 2001323693 A JP2001323693 A JP 2001323693A JP 2003134891 A JP2003134891 A JP 2003134891A
- Authority
- JP
- Japan
- Prior art keywords
- generator
- power
- wind turbine
- frequency
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 102100033007 Carbonic anhydrase 14 Human genes 0.000 description 1
- 101000867862 Homo sapiens Carbonic anhydrase 14 Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Wind Motors (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、風力発電装置に
関し、特に発電出力の周波数を電力系統の周波数に直接
変換して連系運転を行う技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine generator, and more particularly to a technique for directly converting a frequency of a power generation output to a frequency of a power system to perform interconnection operation.
【０００２】[0002]
【従来の技術】従来、電力系統と連系運転を行う風力発
電装置は、図４に示すように風車１に軸結合した発電機
２の交流出力電力をコンバータ３により、いったん直流
電力に変換する。この直流電力をインバータ４によって
電力系統５と同一の周波数の交流電力に逆変換し、連系
運転を行っている。2. Description of the Related Art Conventionally, as shown in FIG. 4, a wind turbine generator that is interconnected with a power system temporarily converts AC output power of a generator 2 axially coupled to a wind turbine 1 into DC power by a converter 3. . This DC power is inversely converted into AC power having the same frequency as that of the power system 5 by the inverter 4, and the interconnection operation is performed.
【０００３】[0003]
【発明が解決しようとする課題】ところが上述の方法に
はコンバータおよびインバータの２つの電力変換装置を
必要とするため、装置が大型化し、これらの変換装置の
損失により効率が低下するとともに、コストが上昇して
しまうという課題があった。However, since the above method requires two power conversion devices, a converter and an inverter, the size of the device becomes large, and the efficiency is reduced due to the loss of these conversion devices, and the cost is reduced. There was a problem that it would rise.
【０００４】また、これらの変換装置のスイッチングに
より高周波輻射ノイズが発生し、外部機器に影響を与え
るのでノイズ低減対策が必要になり、コストが上昇して
しまうという課題があった。Further, switching of these converters causes high-frequency radiation noise, which affects external equipment. Therefore, noise reduction measures are required, resulting in an increase in cost.
【０００５】本発明はこのような背景の下になされたも
ので、発電機の交流出力を直接周波数変換して電力系統
と連系運転を行うことができる風力発電装置を提供する
ことを目的とする。The present invention has been made under such a background, and an object of the present invention is to provide a wind power generator capable of directly frequency-converting the AC output of the generator to perform interconnection operation with the power system. To do.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の発明
は、風力エネルギを受けて回転する風車と、該風車に軸
結合して所定周波数の交流電力を出力する発電機と、該
発電機の出力した交流電力を電力系統と同一周波数の交
流電力に直接変換するサイクロコンバータとを具備し、
前記電力系統と連系運転を行うことを特徴とする風力発
電装置を提供する。According to the present invention, there is provided a wind turbine that receives wind energy to rotate, a generator that is axially coupled to the wind turbine to output AC power having a predetermined frequency, and the generator. And a cycloconverter that directly converts the AC power output by the AC power into AC power of the same frequency as the power system,
There is provided a wind turbine generator characterized in that it is connected to the power system.
【０００７】この発明によれば、風車に軸結合した発電
機の交流出力電力をサイクロコンバータによって電力系
統と同一の周波数の交流電力に直接変換するので、装置
効率を高くすることができるとともに、装置の構成を簡
略化することができ、低コスト化を推進することができ
る。According to the present invention, the AC output power of the generator axially coupled to the wind turbine is directly converted into the AC power of the same frequency as the power system by the cycloconverter, so that the device efficiency can be increased and the device can be improved. The configuration can be simplified, and cost reduction can be promoted.
【０００８】請求項２に記載の発明は、請求項１記載の
風力発電装置において、前記発電機は、永久磁石式同期
発電機としたことを特徴とする。According to a second aspect of the present invention, in the wind turbine generator according to the first aspect, the generator is a permanent magnet type synchronous generator.
【０００９】この発明によれば、永久磁石式同期発電機
を使用することによって風車の回転と同期した周波数の
交流出力を得ることができ、交流電源系統の周波数への
周波数変換を容易にすることができる。According to the present invention, it is possible to obtain an AC output having a frequency synchronized with the rotation of the wind turbine by using the permanent magnet type synchronous generator, and to facilitate the frequency conversion to the frequency of the AC power supply system. You can
【００１０】請求項３に記載の発明は、請求項１または
２記載の風力発電装置において、前記発電機は、超多極
発電機として電力系統の周波数よりも高い周波数の交流
電力を出力することを特徴とする。According to a third aspect of the present invention, in the wind turbine generator according to the first or second aspect, the generator outputs, as an ultra-multipolar generator, AC power having a frequency higher than the frequency of the power system. Is characterized by.
【００１１】この発明によれば、発電機を極数が通常４
〜６極程度に対して１０極以上、好ましくは５０極以上
の超多極発電機とすることによって風車と発電機を直結
したときでも電源系統の周波数より高い周波数の交流出
力を得ることができる。According to the present invention, the generator is normally equipped with four poles.
By using an ultra-multipolar generator having 10 poles or more, preferably 50 poles or more with respect to about 6 poles, an AC output having a frequency higher than the frequency of the power supply system can be obtained even when the wind turbine and the generator are directly connected. .
【００１２】請求項４に記載の発明は、請求項１または
２記載の風力発電装置において、前記発電機は、増速機
を介して前記風車に軸結合して高速回転させることによ
り電力系統の周波数よりも高い周波数の交流電力を出力
することを特徴とする。According to a fourth aspect of the present invention, in the wind turbine generator according to the first or second aspect, the generator is axially coupled to the wind turbine through a speed increaser and is rotated at a high speed so that the power system It is characterized in that AC power having a frequency higher than the frequency is output.
【００１３】この発明によれば、風車と発電機の結合を
増速機を介して行うので、発電機を高速回転させること
ができ、容易に高い周波数の交流出力を得ることができ
る。According to the present invention, since the wind turbine and the generator are connected via the gearbox, the generator can be rotated at a high speed, and an AC output having a high frequency can be easily obtained.
【００１４】請求項５に記載の発明は、請求項１から４
のいずれか記載の風力発電装置において、前記サイクロ
コンバータは、スイッチング素子を順方向電圧がかかり
始めるゼロクロス電圧付近でスイッチングすることによ
って高周波輻射ノイズを低減したことを特徴とする。The invention described in claim 5 is from claim 1 to claim 4.
In the wind turbine generator according to any one of 1 to 3, the cycloconverter reduces high frequency radiation noise by switching a switching element near a zero cross voltage at which forward voltage starts to be applied.
【００１５】この発明によれば、サイクロコンバータを
構成するスイッチング素子に順方向電圧がかかり始める
ゼロクロス電圧付近でスイッチングすることによってス
イッチオン時の突入電流を抑制することができ、高周波
輻射ノイズを低減することができる。According to the present invention, the inrush current when the switch is turned on can be suppressed by switching near the zero-cross voltage at which the forward voltage starts to be applied to the switching element forming the cycloconverter, and the high frequency radiation noise is reduced. be able to.
【００１６】[0016]
【発明の実施の形態】以下、この発明の一実施の形態に
ついて図を参照しながら説明する。図１は、この発明の
一実施の形態による風力発電装置の構成を示すブロック
図である。この図において、風車１は発電機２と直接軸
結合されている。この発電機２は超多極の永久磁石式同
期発電機であり、１２０Ｈｚの３相交流を出力する。た
とえば、風車の回転速度を３０ｒｐｍとすると発電機２
の磁極数は４８０極となる。この発電機２の交流出力を
サイクロコンバータ６に入力し、周波数変換して６０Ｈ
ｚの交流出力を取り出して電力系統５と系統連系運転を
行う。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a wind turbine generator according to an embodiment of the present invention. In this figure, a wind turbine 1 is directly axially coupled to a generator 2. This generator 2 is an ultra-multipolar permanent magnet synchronous generator, and outputs a 120 Hz three-phase alternating current. For example, if the rotation speed of the wind turbine is 30 rpm, the generator 2
The number of magnetic poles is 480. The AC output of this generator 2 is input to the cycloconverter 6 and the frequency is converted to 60H.
The AC output of z is taken out and the system interconnection operation with the power system 5 is performed.
【００１７】つぎに図２を参照して、サイクロコンバー
タ６の入力電圧と出力電圧との関係を説明する。この図
では、周波数変換前の電圧の各相をＵ相、Ｖ相およびＷ
相のように大文字で表し、周波数変換後の電圧の各相を
ｕ相、ｖ相およびｗ相と小文字で表すことにする。図２
（ａ）は、発電機２の発生電圧、すなわちサイクロコン
バータ６の３相入力電圧を示し、時刻ｔ０からｔ６まで
の間がＵ相電圧の１サイクル分となっている。同様に１
２０°遅れたｔ２からｔ８までがＶ相電圧の１サイクル
分、２４０°遅れたｔ４からｔ１０までがＷ相電圧の１
サイクル分となっている。Next, the relationship between the input voltage and the output voltage of the cycloconverter 6 will be described with reference to FIG. In this figure, each phase of the voltage before frequency conversion is represented by U phase, V phase and W phase.
Each phase of the voltage after frequency conversion is represented by a capital letter like a phase, and u phase, v phase, and w phase are represented by a small letter. Figure 2
(A) shows the generated voltage of the generator 2, that is, the three-phase input voltage of the cycloconverter 6, and the period from time t0 to t6 is one cycle of the U-phase voltage. Similarly 1
One cycle of the V-phase voltage is from t2 to t8 delayed by 20 °, and one of the W-phase voltage is from t4 to t10 delayed from 240 °.
It is a cycle.
【００１８】図２（ｂ）は、変換した出力電圧のうちｕ
相電圧のみを１点鎖線で示している。時刻ｔ０でＵ相が
オンし、続いてｔ１でＷ相を反転した−Ｗ相がオン、ｔ
２でＶ相がオン、ｔ３でＵ相を反転した−Ｕ相がオンし
て時刻ｔ０からｔ６の間で正側の１／２サイクルを形成
する。同様に時刻ｔ６からｔ１２の間で負側の１／２サ
イクルを形成してｕ相電圧の１サイクル分となり、６０
Ｈｚの出力電圧を得る。ｖ相およびｗ相については図示
していないが、ｖ相電圧は時刻ｔ４からｔ１０の間で正
側の１／２サイクル、ｗ相電圧は時刻ｔ８からｔ１４の
間で正側の１／２サイクルを形成して６０Ｈｚの出力電
圧を得る。FIG. 2B shows u of the converted output voltage.
Only the phase voltage is shown by the one-dot chain line. At time t0, the U phase is turned on, then at t1, the W phase is inverted, and the -W phase is turned on, t
The V phase is turned on at 2, the U phase is inverted at t3, and the -U phase is turned on to form a positive half cycle between time t0 and time t6. Similarly, a half cycle on the negative side is formed between time t6 and time t12, which corresponds to one cycle of the u-phase voltage.
Obtain the output voltage in Hz. Although not shown for the v-phase and the w-phase, the v-phase voltage is a positive half cycle between the times t4 and t10, and the w-phase voltage is a positive half cycle between the times t8 and t14. To obtain an output voltage of 60 Hz.
【００１９】６０Ｈｚに変換され、合成された電圧波形
は、図２（ｂ）に示すように台形波に近い波形となって
いるが、サイクロコンバータ６に内蔵された正弦化フィ
ルタによって電力系統５と連系運転を行うことができる
一点鎖線で示した正弦波電圧に整形される。また、サイ
クロコンバータ６のスイッチング素子によるスイッチン
グは電圧の極性が反転して順方向電圧がかかり始めるゼ
ロクロスポイント付近でスイッチングを行うことによっ
て高周波輻射ノイズを低減することができる。The voltage waveform converted to 60 Hz and synthesized has a waveform close to a trapezoidal wave as shown in FIG. 2 (b). The voltage is shaped into the sine wave voltage shown by the alternate long and short dash line that enables interconnection operation. Further, the switching by the switching element of the cycloconverter 6 can reduce high frequency radiation noise by performing switching in the vicinity of the zero cross point at which the polarity of the voltage is inverted and the forward voltage starts to be applied.
【００２０】つぎに、この発明の他の実施の形態につい
て図３を参照しながら説明する。図３は、この発明の他
の実施の形態による風力発電装置の構成を示すブロック
図である。この図において、風車１は増速機７と軸結合
され、この増速機７によって増速された出力軸側と発電
機２とが軸結合されている。この発電機２は永久磁石式
同期発電機であり、１２０Ｈｚの３相交流を出力する。
たとえば、風車の回転速度を３０ｒｐｍ、増速機７の増
速率を１０倍とすると、発電機２は３００ｒｐｍで回転
することになり、発電機２の磁極数は４８極となる。こ
の発電機２の交流出力をサイクロコンバータ６に入力
し、上述の一実施の形態と同様の周波数変換を行って６
０Ｈｚの交流出力を取り出して電力系統５と系統連系運
転を行う。Next, another embodiment of the present invention will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of a wind turbine generator according to another embodiment of the present invention. In this figure, the wind turbine 1 is axially connected to a speed increaser 7, and the output shaft side increased in speed by the speed increaser 7 and the generator 2 are axially connected. This generator 2 is a permanent magnet type synchronous generator and outputs a three-phase alternating current of 120 Hz.
For example, if the rotation speed of the wind turbine is 30 rpm and the speed increase rate of the speed increaser 7 is 10, the generator 2 will rotate at 300 rpm, and the number of magnetic poles of the generator 2 will be 48. The AC output of the generator 2 is input to the cycloconverter 6 to perform frequency conversion similar to that of the above-described embodiment, and
The AC output of 0 Hz is taken out and the system interconnection operation with the power system 5 is performed.
【００２１】以上、本発明の実施の形態の動作を図面を
参照して詳述してきたが、本発明はこれらの実施の形態
に限られるものではなく、本発明の要旨を逸脱しない範
囲の設計変更等があっても本発明に含まれる。たとえ
ば、サイクロコンバータの入力周波数と出力周波数間の
周波数低減比は１／２に限られるものではなく、任意の
周波数比で周波数変換を行うことが可能である。また、
サイクロコンバータはＰＷＭ制御を行うことにより発電
機の出力電力の周波数より高い周波数の出力を得て連系
運転を行うことも可能である。The operation of the embodiments of the present invention has been described in detail above with reference to the drawings. However, the present invention is not limited to these embodiments, and the design is within the scope of the present invention. The present invention includes modifications and the like. For example, the frequency reduction ratio between the input frequency and the output frequency of the cycloconverter is not limited to 1/2, and frequency conversion can be performed at any frequency ratio. Also,
By performing PWM control, the cycloconverter can obtain an output of a frequency higher than the frequency of the output power of the generator and perform the interconnection operation.
【００２２】[0022]
【発明の効果】これまでに説明したように、本発明によ
れば以下に示す効果が得られる。請求項１の発明によれ
ば、風車に軸結合した発電機の交流出力電力をサイクロ
コンバータによって電力系統と同一の周波数の交流電力
に直接変換するので、装置効率を高くすることができる
とともに、装置の構成を簡略化することができ、低コス
ト化を推進することができる。As described above, according to the present invention, the following effects can be obtained. According to the invention of claim 1, since the AC output power of the generator axially coupled to the wind turbine is directly converted into the AC power of the same frequency as the power system by the cycloconverter, the device efficiency can be increased and the device can be improved. The configuration can be simplified, and cost reduction can be promoted.
【００２３】請求項２の発明によれば、永久磁石式同期
発電機を使用することによって風車の回転と同期した周
波数の交流出力を得ることができ、交流電源系統の周波
数への周波数変換を容易にすることができる。According to the second aspect of the present invention, by using the permanent magnet type synchronous generator, it is possible to obtain an AC output having a frequency synchronized with the rotation of the wind turbine, and it is easy to perform frequency conversion into the frequency of the AC power supply system. Can be
【００２４】請求項３の発明によれば、発電機を極数が
通常４〜６極程度に対して１０極以上、好ましくは５０
極以上の超多極発電機とすることによって風車と発電機
を直結したときでも電源系統の周波数より高い周波数の
交流出力を得ることができる。According to the third aspect of the invention, the number of poles of the generator is usually 4 to 6, but 10 or more, preferably 50.
Even if the wind turbine and the generator are directly connected, the AC output having a frequency higher than the frequency of the power supply system can be obtained by using the super-multipolar generator having more than the poles.
【００２５】請求項４の発明によれば、風車と発電機の
結合を増速機を介して行うので、発電機を高速回転させ
ることができ、容易に高い周波数の交流出力を得ること
ができる。According to the invention of claim 4, since the wind turbine and the generator are coupled via the speed increasing gear, the generator can be rotated at a high speed, and an AC output having a high frequency can be easily obtained. .
【００２６】請求項５の発明によれば、サイクロコンバ
ータを構成するスイッチング素子に順方向電圧がかかり
始めるゼロクロス電圧付近でスイッチングすることによ
ってスイッチオン時の突入電流を抑制することができ、
高周波輻射ノイズを低減することができる。According to the fifth aspect of the present invention, it is possible to suppress the inrush current when the switch is turned on by performing switching in the vicinity of the zero-cross voltage at which the forward voltage is applied to the switching element which constitutes the cycloconverter.
High frequency radiation noise can be reduced.
【図１】 本発明の一実施の形態による風力発電装置の
構成を示すブロック図。FIG. 1 is a block diagram showing a configuration of a wind turbine generator according to an embodiment of the present invention.
【図２】 サイクロコンバータの周波数変換を説明する
図。FIG. 2 is a diagram for explaining frequency conversion of a cycloconverter.
【図３】 本発明の他の実施の形態による風力発電装置
の構成を示すブロック図。FIG. 3 is a block diagram showing a configuration of a wind turbine generator according to another embodiment of the present invention.
【図４】 従来の技術による風力発電装置の構成を示す
ブロック図。FIG. 4 is a block diagram showing a configuration of a conventional wind turbine generator.
１…風車 ２…発電機 ３…コンバータ ４…インバータ ５…電力系統 ６…サイクロコンバータ ７…増速機 1 ... Windmill 2 ... Generator 3 ... Converter 4 ... Inverter 5 ... Power system 6 ... Cyclo converter 7 ... gearbox
フロントページの続き Ｆターム(参考） 3H078 AA02 AA26 BB01 CC01 CC13 CC22 CC73 5G066 HA30 HB02 5H590 AA02 AA04 AA05 AA30 CA14 CB01 CC02 CC24 CD05 CE01 EA14 EB02 EB07 FA08 FB01 FB02 Continued front page F term (reference) 3H078 AA02 AA26 BB01 CC01 CC13 CC22 CC73 5G066 HA30 HB02 5H590 AA02 AA04 AA05 AA30 CA14 CB01 CC02 CC24 CD05 CE01 EA14 EB02 EB07 FA08 FB01 FB02
Claims (5)
電機と、 該発電機の出力した交流電力を電力系統と同一周波数の
交流電力に直接変換するサイクロコンバータとを具備
し、前記電力系統と連系運転を行うことを特徴とする風
力発電装置。1. A wind turbine that receives wind energy to rotate, a generator that is axially coupled to the wind turbine to output AC power having a predetermined frequency, and AC power output from the generator that has the same frequency as the power system. A wind power generator comprising: a cycloconverter for directly converting to electric power, and performing an interconnection operation with the electric power system.
したことを特徴とする請求項１記載の風力発電装置。2. The wind turbine generator according to claim 1, wherein the generator is a permanent magnet synchronous generator.
系統の周波数よりも高い周波数の交流電力を出力するこ
とを特徴とする請求項１または２記載の風力発電装置。3. The wind turbine generator according to claim 1, wherein the generator outputs AC power having a frequency higher than a frequency of a power system as an ultra-multipolar generator.
に軸結合して高速回転させることにより電力系統の周波
数よりも高い周波数の交流電力を出力することを特徴と
する請求項１または２記載の風力発電装置。4. The power generator outputs AC power having a frequency higher than a frequency of a power system by axially coupling the wind turbine to the wind turbine through a speed increaser and rotating the wind turbine at a high speed. Or the wind turbine generator according to 2.
グ素子を順方向電圧がかかり始めるゼロクロス電圧付近
でスイッチングすることによってスイッチングノイズを
低減したことを特徴とする請求項１から４のいずれか記
載の風力発電装置。5. The wind turbine generator according to claim 1, wherein the cycloconverter reduces switching noise by switching a switching element in the vicinity of a zero-cross voltage at which a forward voltage starts to be applied. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001323693A JP2003134891A (en) | 2001-10-22 | 2001-10-22 | Wind-power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001323693A JP2003134891A (en) | 2001-10-22 | 2001-10-22 | Wind-power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003134891A true JP2003134891A (en) | 2003-05-09 |
Family
ID=19140548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001323693A Withdrawn JP2003134891A (en) | 2001-10-22 | 2001-10-22 | Wind-power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003134891A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005003554A1 (en) * | 2003-07-08 | 2005-01-13 | Cosmo Plant Co., Ltd | Wind power generation system, arrangement structure of permanent magnets, and electricity/force conversion system |
-
2001
- 2001-10-22 JP JP2001323693A patent/JP2003134891A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005003554A1 (en) * | 2003-07-08 | 2005-01-13 | Cosmo Plant Co., Ltd | Wind power generation system, arrangement structure of permanent magnets, and electricity/force conversion system |
| US7417334B2 (en) | 2003-07-08 | 2008-08-26 | Shiro Kinpara | Wind power generation system, arrangement of permanent magnets, and electrical power-mechanical force converter |
| US7944069B2 (en) | 2003-07-08 | 2011-05-17 | Cosmo Plant, Ltd. | Wind power generation system, arrangement of permanent magnets, and electrical power-mechanical force converter |
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